Tool for the repair of automobile tire shoes



Sept. 13, 1927.

J. ABRAHAMS TOOL FOR THE REPAIR OF AUTOMOBILE TIRE SHOES Filed April 12, 1927 2 Sheets-Sheet 1 .4 TTORNEYL. r

Sept. 13, 1927. 1,642,395

J. ABRAHAMS TOOL FOR THE REPAIR OF APJTOMOBILE' TIRE SHOES Filed April 12, 1927 2 Sheets-Sheet 2 INVENTOR. Jacob flbraho'mg' BY M ATTORNEY}.

Patented Sept. 13, 1927.

" UNITED STATES ,e42,395 {PATENT OFFICE-,3

JACOB ABRAHAMS, BRADLEY BEACH, NEW .iEEsEY.

TooL o THE itEPAIE 0E AUTQMOEI'IQETIEE srioEs.

Application filed s in 12,

when so compres"ed,"'to cut away the injured part, forming preferably What are knownas steps in the fabric of which the shoe is formed, to replace the injured part by a cor- 'respondingly formed plug or patch, then to retract the pressure on the periphery of the shoe withthe' patch or plug in position and vulcanize the same, thus accomplishing the repair. p

Serious difliculty has been found in handling'heavy shoes, such as are used on'trucks or the like, for the reason that the shoes are heavy and therefore stilf and not easily flexed, and it is with great difficulty that suitable pressure can be exerted to" depress theshoe at the point of fracture in. such a way as to be ableto operate on the same from the inside of the shoe.

It is also important to have a tool that may be positioned in radii of the annular axis of the tube, for the reason that punctures or blow-outs through the shoe are not always on the tread, but maybe to the right or left of the tread'or on'the side of the shoe.

It is therefore important to have a tool that is adjustable radially to the annular axis of the shoe so that the compression referred to may be brought to bear wherever the fracture has occurred in the shoe.

With the tool which is the subject matter of this application, it is possibleto accomplish all of the desirable features above referred-to.

The invention is illustrated in the accompanying drawings, in Which V Figure 1 is a side elevation of a tire shoe, with the tool in positicnto operate;

Figure 2 is arsectional viewthrough a block, which is the means employed for carrying the compression element, and which block moves in an annular path a slot in the tool;

Figure 3 is an elevation rate from the tire;

Figure 4 is a verti al section of the tire shoe, Il a-sing associated therewith the {of the tool sepa described by- 1327. vS erial itio.183,059. 7

which is the subj ectmatter of this invention;

In dotted lines in this drawing is Ehowntlie 1 shoe compressed towards its annular axis in a position where a P6132111" may be conveniently accomphshed.

The elements of the tool are designated parts.- r Y 1 is an automobile tire shoe. 22 are the annular beads of said shoe. Sis a depression in the shoe, when operated upon by the tool, such depression being indicated in dotted lines. a r

The tool comprises a bifurcated element, indicated as 1, the bifurcated arms being designated as 5 and 6. 7 and 8are hooks at by numerals, like numerals referring to like the end of said bifurcated arms 5and 6. An Y annular slot 9 is formed in said bifurcated element 4. 1010 indicate the divided sections of the bifurcated element 4, between which lies the slot 9. 11 is ablock adapted to receive the divided sections1O1 O of the bifurcated element 4. This block is so constructed that it can be moved in the arc of a circle, ofwhich the annular axis of the shoe is approximately the center-. Said block 11 is provided with a screw threaded aperture through its axis, adapted to receive a stem .17 externallythreaded. 1414 are recesses in said blockito receive the sections 10-1O of the element 4. 15 is a washer. 16 is a nut operating on said washer. 17 is a screw-threaded shaft, screw threaded into an aperture in said block 11. 18 is a hand wheel for the operation of said screw. 19 is a hemispherical head mounted on the shaft 17.

The operation of the device is as follows:

'When it is desired to make a repair in the shoe, the shoe is expanded so that the hooks 7 and 8will overhang the flanges'22 of the shoe. If the fracture, perforation or abrasion of the shoe is found in the tread, the block 11 is positioned with respect to the element 4 as indicated in the drawing, Figure 4. The hand wheel 18 is then rotated so as to project the screw in a direction radial to the annular axis of the shoe, thus driving the head 19 against the shoe, which is held in'position by the hooks 7 and 8, thus causing the shoe to be depressed towards its annular axis, as indicated in dotted lines at 3. The fractured part is now depressed and distorted inwardly, and supported by the spherical head 19. In this position it can be readily operated uponby cutting away eiilt lsimnstions of the shoe as fans steps,

or otherwise to satiety the requirements of the plug); or patch that may he applied to the injured part. \Vhen this is accomplished the screw 17 is retracted hv the reverse move ment of the hand wheel 18. and the shoe assumes its normal position with the plug or patch properly associated therewith. The shoe may then he treated hy vulcanization or otherwise to restore it to its normal con-- dition.

In the event that the damage to the shoe should he found to he located at any point in the arc of the circle of inorenient ot the lllOCh'. as at the point a. then the hloelc is moved in the slot fll' etneen the Walls 1(l-10 to a position radial to the annular axis of the shoe. iiassine through sa d point; :r. In this position the same operation may he aceomplisl'ied as that heretol ore stated. It. on the other hand. the injury to the shoe is on the opposite side of the shoe from a, as i, in that event in ai'uilyingr the tool the hooks T and R are reversed in respect to their relation to the tlangzc 2, thus making it possible to swing the liloclt in an arci which will bring the depressing apparatus opposite the point 12 In considering the merit of this invention it must he recalled that a tool of this nature is oi essential importance in handling shoes of great Weight and thickness, which cannot he depressed except by the employment of a powerful instrument such. as that indicated; and it should also he recalled that the instrument is capahle oi operating): on any part of the periphery of the shoe hy so adjusting the hlock to hring the compression mechanism in a predetermined position to accomplish. the result desired.

What I claim is:

l. A tool adapted For use in the repair o'l auton'iohile tire shoes. which con'iprises an annular hi l'urcatcd element provided with hooks at; either end. said element: adapted to emhraee the shoe in a plane radial to the axis oi the shoe. saidhoolts engaging: the two inner edges of the show said annular element having; an annular slot lying; in said radial plane. means adapted to ((HIHH'OEZR said shoe from its pmiphery toward its annular aicis. such nieaiu heing mounted to more in said slot and to he positioned at any predetermined place in said slot.

9. A tool adapted for use in the repair of automohile. tire shoes. which comprises an annular hiFurcated element provided with hooks at either end. said element adapted to emlnace the shoe in a plane radial to the axis of the shoe. said hoolas ei'iggaging the two inner edges of the shoe. said annular elcinent having: an annular slot: lying: in said radial plane. means adapted to comprci-is said shoe il'tllll its periphery toward its annula' aais. such means lining: mounted to more in said slot and to he positioned at any predetermined place in said slot, said coin prcssion means comprising: a hlock with a screw threaded sha'i't mounted for rotation in said hloclt. and means for rotating said shaft. said shatt provided at one end with a hemispherical head adapted to engage the outer periphery of: said shoe.

Eiie'ned hy me at Bradley Beach, N. I, this 8th day of April. 1927.

JACOB ABE AI-IAMS. 

